[PATCH] Fix incorrect usage percentage in Properties dialog for virtual filesystems

The Properties dialog for filesystems such as `/proc/` or `/sys/` shows an
incorrect usage percentage (i.e., "-2,147,483,648% used"). This commit fixes
that issue by avoiding a divbyzero: if the `size` variable is `0`, the
`percentUsed` variable is set to `0`.

Gbp-Pq: Name upstream_81ca0e2c_Fix-incorrect-usage-percentage-in-Properties-dialog-for-virtual-filesystems.patch

diff --git a/src/widgets/kpropertiesdialogbuiltin_p.cpp b/src/widgets/kpropertiesdialogbuiltin_p.cpp
index 25e146de532fc87201d43c0dcb8ab211b2dc7239..910ab163030eeabe2bd7cbb9d7fb8ce93236e485 100644 (file)
--- a/src/widgets/kpropertiesdialogbuiltin_p.cpp
+++ b/src/widgets/kpropertiesdialogbuiltin_p.cpp
@@ -664,7 +664,7 @@ void KFilePropsPlugin::slotFreeSpaceResult(KJob *_job)
         const qint64 size = job->size();
         const qint64 available = job->availableSize();
         const quint64 used = size - available;
-        const int percentUsed = qRound(100.0 * qreal(used) / qreal(size));
+        const int percentUsed = (size == 0) ? 0 : qRound(100.0 * qreal(used) / qreal(size));
 
         d->m_ui->capacityBar->setText(i18nc("Available space out of total partition size (percent used)",
                                             "%1 free of %2 (%3% used)",